I think this is a sort of non-humility thing. A humble person with humility would react with something like "oh cool! I had no idea this existed but I love it

I think this is a sort of non-humility thing. A humble person with humility would react with something like "oh cool! I had no idea this existed but I love it! Thanks for sharing this with me!" I have found myself on the other side of the coin many times. I have researched something, or invested a lot of time/energy/money in something and then someone who I assume (unconsciously or not) has not done these things and I instantly dismiss. E.g. if my mum turns up one day with a new phone and tries to tell me how great it is, there is no way (in my closed mind opinion) that she would have found something that I was not already aware of and using etc - what I picked and what I use is clearly superior for reasons X Y and Z and I will sub-conciously reassure myself that I am correct by pointing out why she is wrong. I guess it is a sort of pride/arrogance (and maybe even tribalism) thing - a sort of "you think you know something, but I know better than you, so I will explain to you how you are wrong as I know more than you about this. I am right and you are wrong, and I need to prove the point so you know that you are wrong" etc. Not just tech - people will do this about cars, sports, tools - anything. I try to stop myself being in this mindset as much as possible, and try to be more open to what others suggest.